Jailbreaking a 3GS with iOS4

With the iPhone Dev Team’s release of PwnageTool 4 yesterday (and the 4.01 update today) I was ready to jailbreak my iPhone 3GS. It’s been running the iOS4 beta 4/Gold Master since that was leaked, but being on iOS4 already had prevented the use of the beta jailbreaks available before the public release of iOS4. There were still several steps involved to achieve the jailbreak, as stipulated in this condition from the Dev Team’s blog:

If you have a Jailbroken iPhone 3GS with the OLD BOOTROM and you DID NOT use Spirit to jailbreak then you can create the ipsw with PwnageTool 4.0 and restore with your jailbroken recovery mode

My 3GS uses the old bootrom, so OK there. The requirement for a jailbroken 3GS NOT using Spirit meant the first step was to downgrade the firmware to 3.1.2. That’s an easy step if Cydia has your SHSH stored for the previous firmware, as mine are.

The next step was to jailbreak the 3.1.2 install using redsn0w 0.9.2. Once this was confirmed to be working correctly (just look for Cydia to be installed) PwnageTool 4.01 was used to produce a custom iOS4 ipsw. The iPhone was then put into DFU mode, and iTunes used to pick the custom ipsw to restore.

Both times I restored a firmware during this process a 1015 error was given after the restore. By that time the restore had successfully completed but the iPhone was stuck in recovery mode. The freeware RecBoot utility was used to get out of recovery mode and back to normal startup.

A backup had been made by iTunes before starting the jailbreak, so this was restored once the jailbreak was completed. I now have SBsettings back on my iPhone, giving fast access to 3G and WiFi on/off to help conserve batter power. There’s a few other useful jailbroken apps that haven’t been updated for iOS4 compatibility yet, but hopefully that will be done soon.

Once again thanks to the iPhone Dev Team for redsn0w and PwnageTool, and to Saurik for Cydia and enabling the downgrade to earlier firmware.

News for Monday 13th October

VideoLAN updated to 0.9.4
The cross-platform free and open source video player is updated. Versions available for a wide range of operating systems.

The story behind Cydia on the iPhone
A brief article on the iPhone and iPod’s main jailbroken software installer.

Running Leopard on a Netbook
Nice article about installing Leopard on a Dell Inspiron Mini 9 netbook.

First T-Mobile G1 user review
Lots of questions answered and a mixed bag of pro’s and con’s.

Smartphone showdown: BlackBerry Storm vs. iPhone
Macworld does the head to head that everyone wants to see.

ASUS plans touchscreen, dual-core Eee PCs
Wondering what’s next for the Eee PC? read the article for the details.

iPhone/iPod Themes

A while back I featured some of my favourite themes available to install through Cydia. It’s been several weeks since and those talented artists are still turning in some fine work, so here are the themes I’ve been using recently.

Vector by Jayden. Colourful and reminds me of the cell shaded style of several games. This one works well with unthemed icons as it sticks to the standard shape.

QuickPwn tested, screenshots

The iPhone Dev Team today released an update to their beta QuickPwn tool complete with GUI by poorlad. It’s now compatible with iPhone and iPod 2.0.2 firmware, so for those brave enough to try beta software and running Windows it’s great. This is a bit of a turnaround to previous tools the Dev Team have released which always seemed to see Mac versions first. Fortunately I have a hard drive with Windows installed in my hackintosh for occasions such as this.

iPhone stuck wallpaper fix

The issue I had with my iPod touch having the wallpaper stuck and unchangeable was traced to the file

/private/var/mobile/Library/LockBackground.jpg

It’s permissions were set to 644, changing this to 664 fixed the problem. I used Fetch (SFTP) to access the iPod’s filesystem, after Jailbreaking it and using Cydia to install OpenSSH.

Themes for the iPhone and iPod

One of my favourite apps on the iPod Touch before installing firmware 2 was Summerboard. Adding themes to this was a great way of easily changing the appearance of the iPod or iPhone’s interface. Unfortunately there doesn’t appear to be a version of Summerboard for firmware 2, but a new app called Winterboard has stepped in to fill the void.

Installer 4 beta screenshots and first impressions

Installer 4 beta is included with the PwnageTool 2.0.2 install, so for those looking to take the plunge here are some screenshots of it in action. I encountered a lot of error message while browsing the available packages (I think this is caused by an icon not being available) so that’s one bug that needs fixing. There aren’t a lot of packages available at the moment so Installer is lagging Cydia for now.